Pay-per-call audit log access on Base via x402 — $0.02/request in USDC.
What it does
This endpoint at lowpaymentfee.com provides access to audit log data (specifically log entry #52) via the x402 payment protocol. It is part of a broader platform offering dozens of pay-per-request API endpoints spanning data analytics, AI/ML inference, finance/Web3 data, and infrastructure utilities — all priced at $0.02 per request, settled in USDC on the Base network.
The specific resource `/api/v1/audit/logs/52` is labeled "Premium API Access" in the x402 challenge. The endpoint accepts POST requests and returns JSON. Payment is handled inline: callers attach an X-PAYMENT header with a signed USDC payment of up to 20,000 base units (i.e., $0.02, since USDC uses 6 decimals). There are no API keys, no rate limits, and no upfront commitments — access is purely transactional.
Documentation on the site is extremely thin. The /docs, /pricing, /api, and /README pages all render only a "Connect wallet" prompt with no substantive content. There is no OpenAPI spec, no request/response schema, and no example payloads available. The exact structure of the audit log response is unknown. The endpoint is confirmed live (returns a proper 402 challenge), but the lack of documentation makes it difficult to know what data is returned or what POST body (if any) is expected.
Capabilities
Use cases
- —Retrieving audit log entries on a per-request payment basis
- —Agent-driven data access without pre-registration or API keys
- —Programmatic audit trail queries settled in USDC on Base
Fit
Best for
- —Agents or scripts that need one-off audit log lookups without subscription overhead
- —Developers experimenting with x402 payment-gated APIs
- —Use cases requiring keyless, permissionless API access
Not for
- —Bulk audit log exports or high-volume streaming (no documented batch support)
- —Users who need detailed API documentation or guaranteed SLAs before integrating
Quick start
curl -X POST https://lowpaymentfee.com/api/v1/audit/logs/52 \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <signed-x402-payment-header>"Endpoint
Quality
The endpoint is live and returns a valid x402 challenge, but documentation is essentially nonexistent — no OpenAPI spec, no request/response examples, and every doc page renders only 'Connect wallet'. The purpose of 'audit/logs/52' is unclear beyond the generic 'Premium API Access' label. Pricing is clear but everything else must be inferred.
Warnings
- —No documentation available — /docs, /pricing, /api, and /README all show only 'Connect wallet'
- —No OpenAPI or schema describing request body or response format
- —The specific resource '/api/v1/audit/logs/52' is not listed among the site's advertised APIs, raising questions about what data it actually returns
- —Audit log content and structure are completely unknown
Citations
- —The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units in USDC on Basehttps://lowpaymentfee.com/api/v1/audit/logs/52
- —All listed APIs are priced at $0.02 per request with no API keys, no rate limits, and instant access on Base networkhttps://lowpaymentfee.com
- —USDC asset contract on Base is 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913https://lowpaymentfee.com/api/v1/audit/logs/52